Tool

Futures ↔ ETF Converter

Convert between index futures and their ETFs and indices — /ES ↔ SPY and /NQ ↔ QQQ ↔ NDX. Type a value into any field and the equivalents update instantly.

S&P 500

E-mini futures ↔ SPDR ETF

/ESE-mini S&P 500 futuresSPYSPDR S&P 500 ETF

Nasdaq-100

E-mini futures ↔ QQQ ETF ↔ index

/NQE-mini Nasdaq-100 futuresQQQInvesco QQQ ETFNDXNasdaq-100 index

Conversion ratios last updated June 15, 2026. Ratios aren't perfectly constant — dividends, stock splits, and changes in index composition shift them over time — so treat results as close approximations, not exact prices.

How the conversion works

/ES and /NQare the E-mini futures on the S&P 500 and Nasdaq-100. SPY and QQQ are the ETFs that track those indices, and NDXis the Nasdaq-100 index itself. Each instrument is scaled differently — SPY trades at roughly one-tenth of the S&P 500, and QQQ at roughly one-forty-first of the Nasdaq-100 — so converting between them is a single multiply or divide by a ratio. The ratios below also absorb the small futures basis (the premium or discount of the future to spot).

Pair	Ratio	Formula
/ES ↔ SPY	10.1091	SPY = /ES ÷ ratio
/NQ ↔ QQQ	41.5117	QQQ = /NQ ÷ ratio
NDX ↔ QQQ	41.0691	QQQ = NDX ÷ ratio

New to how these instruments relate? Our guide to micro vs. mini futures and the platform comparison are good next stops.